SUPPLY AND RETURN AIR GRILLES TYPE: AS/GS120 AS/GS130

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1 SUPPLY AND RETURN AIR GRILLES TYPE: AS/GS120 AS/GS130 Installation dimensions AS/GS120 AS/GS130 Application The grille type AS / GS is used for the supply and exhaust of cooled or heated air in facilities such as warehouses, workshops, commercial centres,... The grille can be mounted directly on a circular duct. The vanes can be adjusted manually and individually to obtain an optimal air distribution. Nominal dimensions: L = nominal length (mm) H = nominal height (mm) All dimensions in mm Technical information Characteristics: free passage ca. 70% (depending on the position of the vanes) AS / GS 120: exhaust grille AS / GS 130: supply grille nom. L = mm nom. H = mm Construction: AS : roll-formed aluminium sheet GS : roll-formed steel sheet Both are phosphated and painted in white (RAL 9010) Fast selection diagram Dimension L x H (mm) Throw L T (m) Throw factor is based on a v R of 0,17 m/s in the occupied zone. See p. 1 for a detailed selection. Only for supply. For exhaust, see p. 1 NR

2 SUPPLY AN RETURN AIR GRILLES FRAME AND CORE OPTIONS Specifications description Example: Steel supply and exhaust grille with individually adjustable vanes for mounting in circular ducts, equipped with an inclined damper. The grille is painted in white (RAL 9010) Accessories GT005 : inclined hit-and-miss damper out of galvanised sheet steel, painted black GT006 : hit-and-miss damper out of galvanised steel sheet, painted black Fixing Visible screw fixing Type: GS130 + GT005 nom. dim. (LxH)... x... mm Fixing dimensions Nominal dimensions Dimensions Duct Diam. (mm) L x H (mm) A B C min. max. 425 x x x x x x x x x x x x How to order GS130, dimension 625 x 125 mm, with hit-and-miss damper GT005 G S L H 5:inclined hit-and-miss damper GT005 6:hit-and-miss damper GT006 2:single row of vertical vanes 3:vertical front vanes, horizontal back vanes G: steel A: aluminium

3 TYPE: AS/GS120 AS/GS130 Possible deliveries AS/GS120 AS/GS130 AS/GS126 AS/GS1 Aluminium AS120 AS126 AS130 AS1 Steel GS120 GS126 GS130 GS1 Construction Exhaust grille with single row of vertical vanes AS/GS120 with hit-and-miss damper GT006 Supply grille with front row of vertical vanes and back row of horizontal vanes AS/GS130 with inclined hit-and-miss damper GT005

4 PERFORMANCE DATA TYPE: AS/GS120 AS/GS130 Selection diagram - supply - 0 deflection - With ceiling effect - Without damper NOTE: noise level correction with damper: see pressure loss diagram Air flow rate measurement supply-exhaust A k - values supply (m 2 ) L (mm) H (mm) ,015 0,034 0,069 0,102 0,020 0,044 0,086 0,130 0,024 0,053 0,102 0,148 Velometer jet 2220 A or 6070 Correction factors Throw correction factor L T without ceiling effect Distance between ceiling and supply grille 0,9 m Correction L T x 0,75

5 PERFORMANCE DATA TYPE: AS/GS120 AS/GS130 Selection diagram - exhaust NR NR 45 NR + 11 NR + 18 NR 40 NR NR 30 NR 25 NR 20 Pressure loss - supply P t (Pa) 25 % D % 100 % GS1 H (mm) A k - values exhaust (m 2 ) 425 L (mm) NR + NR + 25 NR + 15 GS ,012 0,023 0,044 0,066 0,014 0,029 0,0 0,086 0,017 0,034 0,066 0, NR + 0 Example - exhaust - Exhaust air flow rate q v = 0,14 m 3 /s - Grille: GS x 125 mm - Air velocity v k = 4 m/s - Noise level NR 20 - Total pressure loss with damper 100 % open: p t = 6,5 Pa - Correction on noise level: NR = NR ,5 2 2,5 3 3, v K (m/s) v D v k pt